161 lines
4.9 KiB
Python
161 lines
4.9 KiB
Python
import random
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import uuid
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from functools import cached_property
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import rcssmin
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import readtime
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from django.conf import settings
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from django.contrib.auth.models import AbstractUser
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from django.contrib.contenttypes.models import ContentType
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from django.db import models
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from django.db.models import Prefetch
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from django.template.defaultfilters import slugify
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from django.urls import reverse
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from django.utils import timezone
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from articles.utils import (
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build_full_absolute_url,
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format_article_content_for_html,
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format_article_content_for_rss,
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get_html_to_text_converter,
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truncate_words_after_char_count,
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)
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class User(AbstractUser):
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pass
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class Tag(models.Model):
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name = models.CharField(max_length=255, unique=True)
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slug = models.CharField(max_length=255, unique=True)
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class Meta:
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ordering = ["name"]
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def __str__(self):
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return self.name
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def get_absolute_url(self):
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return reverse("tag", kwargs={"slug": self.slug})
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def get_feed_title(self):
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return f"{self.name} - {settings.BLOG['title']}"
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def get_feed_url(self):
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return reverse("tag-feed", kwargs={"slug": self.slug})
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class Article(models.Model):
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DRAFT = "draft"
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PUBLISHED = "published"
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STATUS_CHOICES = [
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(DRAFT, "Draft"),
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(PUBLISHED, "Published"),
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]
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CONTENT_DEFAULT = (
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'!!! warning "Draft"\n'
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" This article is still a draft. It may appear by error in your feed "
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'if I click on the "publish" button too early 😊'
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)
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title = models.CharField(max_length=255)
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content = models.TextField(default=CONTENT_DEFAULT)
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status = models.CharField(max_length=15, choices=STATUS_CHOICES, default=DRAFT)
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published_at = models.DateTimeField(null=True, blank=True)
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created_at = models.DateTimeField(auto_now_add=True)
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updated_at = models.DateTimeField(auto_now=True)
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author = models.ForeignKey(User, on_delete=models.PROTECT, default=1)
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views_count = models.IntegerField(default=0)
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slug = models.SlugField(unique=True, max_length=255)
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has_code = models.BooleanField(default=False, blank=True)
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is_home = models.BooleanField(default=False, blank=True)
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custom_css = models.TextField(blank=True)
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draft_key = models.UUIDField(default=uuid.uuid4)
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tags = models.ManyToManyField(to=Tag, related_name="articles", blank=True)
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class Meta:
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ordering = ["-published_at"]
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def __str__(self):
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return self.title
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def get_absolute_url(self):
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return reverse("article-detail", kwargs={"slug": self.slug})
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def get_abstract(self):
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html = self.get_formatted_content
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return html.split("<!--more-->")[0]
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@cached_property
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def get_description(self):
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html = self.get_formatted_content
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converter = get_html_to_text_converter()
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text = converter.handle(html)
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return truncate_words_after_char_count(text, 160)
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@cached_property
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def get_formatted_content(self):
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return format_article_content_for_html(self.content)
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@cached_property
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def get_formatted_content_for_rss(self):
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return format_article_content_for_rss(self.content)
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def publish(self):
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if not self.published_at:
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self.published_at = timezone.now()
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self.status = self.PUBLISHED
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self.save()
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return self
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def unpublish(self):
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self.published_at = None
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self.status = self.DRAFT
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self.save()
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return self
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def save(self, *args, **kwargs):
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if not self.slug:
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self.slug = slugify(self.title)
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return super().save(*args, **kwargs)
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@property
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def draft_public_url(self):
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url = self.get_absolute_url() + f"?draft_key={self.draft_key}"
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return build_full_absolute_url(request=None, url=url)
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def refresh_draft_key(self):
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self.draft_key = uuid.uuid4()
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self.save()
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def get_read_time(self):
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content = self.get_formatted_content
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if content:
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return readtime.of_html(content).minutes
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return 0
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@cached_property
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def get_related_articles(self):
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related_articles = set()
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published_articles = Article.objects.filter(status=Article.PUBLISHED)
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for tag in self.tags.all().prefetch_related(
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Prefetch("articles", published_articles, to_attr="published_articles")
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):
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related_articles.update(tag.published_articles)
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sample_size = min([len(related_articles), 3])
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return random.sample(related_articles, sample_size)
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@cached_property
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def keywords(self):
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return ", ".join(map(lambda tag: tag.name, self.tags.all()))
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@cached_property
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def get_minified_custom_css(self):
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return rcssmin.cssmin(self.custom_css)
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def get_admin_url(self):
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content_type = ContentType.objects.get_for_model(self.__class__)
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return reverse(
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"admin:%s_%s_change" % (content_type.app_label, content_type.model),
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args=(self.id,),
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)
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